Abstract
This work introduces a meshed debonding model intended for use with tristructural isotropic (TRISO) fuel particles. The ability to better examine the potential effects of interface debonding between the coating layers will enable a host of investigations of the stress state when complex loading and interactions between coated fuel particles are taking place. In this work, the debonding model is discussed in detail. Then, simulations are presented to show the capabilities and limitations of the model. First, a traditional high-temperature gas reactor TRISO particle is considered. Then, a TRISO particle in a graphitic matrix is analyzed, followed by a TRISO particle in a silicon carbide matrix.
| Original language | English |
|---|---|
| Pages (from-to) | 276-284 |
| Number of pages | 9 |
| Journal | Nuclear Science and Engineering |
| Volume | 196 |
| Issue number | 3 |
| DOIs | |
| State | Published - 2022 |
Funding
Tyler Gerczak, Nathan Capps, and Andrew Nelson provided valuable comments on the manuscript. The authors acknowledge the high-performance-computing resources made available for this work at Idaho National Laboratory. This research was supported by the Transformational Challenge Reactor program, U.S. Department of Energy (DOE), Office of Nuclear Energy. This manuscript has been authored by UT-Battelle, LLC under contract number DE-AC05-00OR22725 with the DOE.
| Funders | Funder number |
|---|---|
| U.S. Department of Energy | |
| Office of Nuclear Energy | DE-AC05-00OR22725 |
| Idaho National Laboratory |
Keywords
- TRISO
- debonding
- silicon carbide pyrolytic carbon